Vance Astro, born Vance Astrovik and going by the code name Major Victory, is a fictional character, a superhero appearing in American comic books published by Marvel Comics. The character is usually depicted as being from the Earth-691 timeline of the Marvel Universe. Astro first appeared in January 1969 as a founding member of the Guardians of the Galaxy in the partial reprint title Marvel Super-Heroes with issue #18.